30 lines
629 B
ArmAsm
30 lines
629 B
ArmAsm
#include <linux/linkage.h>
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#include <asm/visasm.h>
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#include <asm/asi.h>
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#define F3F(x,y,z) (((x)<<30)|((y)<<19)|((z)<<5))
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#define FPD_ENCODE(x) (((x) >> 5) | ((x) & ~(0x20)))
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#define RS1(x) (FPD_ENCODE(x) << 14)
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#define RS2(x) (FPD_ENCODE(x) << 0)
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#define RD(x) (FPD_ENCODE(x) << 25)
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#define CRC32C(a,b,c) \
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.word (F3F(2,0x36,0x147)|RS1(a)|RS2(b)|RD(c));
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ENTRY(crc32c_sparc64)
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/* %o0=crc32p, %o1=data_ptr, %o2=len */
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VISEntryHalf
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lda [%o0] ASI_PL, %f1
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1: ldd [%o1], %f2
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CRC32C(0,2,0)
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subcc %o2, 8, %o2
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bne,pt %icc, 1b
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add %o1, 0x8, %o1
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sta %f1, [%o0] ASI_PL
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VISExitHalf
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2: retl
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nop
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ENDPROC(crc32c_sparc64)
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